Check out other online guides available here: https://www.biggerpockets.com/guides3.

You need to make sure your product isnt directly competing with all the new construction units tbh at have come or will be coming online soon. 

I feel my largest use will be online rent collection as well as tenant screening.

Newspapers are dead and bringing them all online has only lessened the true journalistic impact which is why you see good writers writing about stuff they just reviewed, but do not know.

An ideal bank would  allows one to set aside tenant's deposit money in a separate account that earn decent interest and is landlord friendly.

Needless to say, I've been scouring for information on YouTube, BiggerPockets, online websites etc.

For $20k you are paying to get access to her online library so you are basically teaching yourself.

No reviews- can't find anything about it online. 

You can find loads of articles, videos, and online courses that'll give you a solid foundation in construction basics.Network and Find a Mentor: Try connecting with people who've been in the game for a while.

You can also check their reviews online at Google, Facebook, or Yelp.